Which graph is a function of X? Explanation, please?
2 answers:
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Answer:
2) 2x = y + 13
Step-by-step explanation:
We have to translate the given information into an equation. We don't know what the numbers are yet, so let the first number be represented by the variable x and the second number be represented by the variable y.
Start by breaking the sentence apart. "2 times the first number" gives us . The "is" in the sentence means that
equals something, bringing us to
. Finally, it says "13 more than the second number." 13 more would mean you have to add to the second number, represented by y, so this gives us
. Put it all together and it is
.
X method is the method to find the factors of the polynomial equation.The factor of the given polynomial is,
Thus the option 3 is the correct option,
<h3>How to find factor of polynomial using X method?</h3>X method is the method to find the factors of the polynomial equation.
The standard form of the quadratic equitation is given as,
Given information-
The equation given in the problem is,
Compare the above equation with the standard form. We get,
To find out the factor of above equation using X method, follow the steps.
- Step 1) Multiply
and
and place
at the top of X as shown in the image.
- Step 2) Place
at the bottom as shown in the image below.
- Step 3) Find two numbers that multiply the top number
- Step 4) Write the polynomial from the X box as,
Hence the factor of the given polynomial is,
Thus the option 3 is the correct option,
Learn more about the X method here;
